Table 5 – Unit Wire/Fuse or HACR Breaker Sizing Data

 

 

 

 

 

 

 

NO C.O. or UNPWR C.O.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UNIT

NOM.

IFM

COMBUSTION

POWER

 

NO P.E.

 

 

w/ P.E. (pwrd fr/ unit)

 

 

 

 

 

 

 

 

 

 

 

FAN MOTOR

EXHAUST

 

FUSE

DISC. SIZE

 

 

FUSE

DISC. SIZE

V---Ph---Hz

TYPE

 

 

 

 

 

 

FLA

FLA

MCA

or

 

 

MCA

 

or

 

 

 

 

 

 

 

 

HACR

FLA

LRA

 

HACR

FLA

 

LRA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BRKR

 

 

BRKR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STD

 

 

32.0

50

31

148

35.8

 

50

36

 

152

 

208/230--- 3--- 60

MED

0.48

3.8

34.3

50

34

185

38.1

 

50

38

 

189

 

 

HIGH

 

 

41.8

60

43

211

45.6

 

60

47

 

215

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

581J*07

 

STD

 

 

16.3

25

16

75

18.1

 

25

18

 

77

 

HIGH

 

 

21.1

30

22

107

22.9

 

30

24

 

109

 

460--- 3--- 60

MED

0.25

1.8

17.1

25

17

94

18.9

 

25

19

 

96

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STD

 

 

11.7

15

11

61

15.5

 

20

16

 

65

 

575--- 3--- 60

MED

0.24

3.8

13.3

20

13

76

17.1

 

20

17

 

80

 

 

HIGH

 

 

16.1

20

16

90

19.9

 

25

21

 

94

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STD

 

 

38.8

50

41

191

42.6

 

50

45

 

195

 

208/230--- 3--- 60

MED

0.48

3.8

38.8

50

41

202

42.6

 

50

45

 

206

 

 

HIGH

 

 

43.6

50

46

245

47.4

 

60

51

 

249

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

581J*08

 

STD

 

 

17.9

20

19

95

19.7

 

25

21

 

97

 

HIGH

 

 

19.7

25

21

123

21.5

 

25

23

 

125

 

460--- 3--- 60

MED

0.25

1.8

17.9

20

19

101

19.7

 

25

21

 

103

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STD

 

 

11.9

15

12

77

15.7

 

20

17

 

81

 

575--- 3--- 60

MED

0.24

3.8

12.7

15

13

81

16.5

 

20

18

 

85

 

 

HIGH

 

 

13.5

15

14

92

17.3

 

20

19

 

96

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STD

 

 

39.0

50

41

191

42.8

 

50

45

 

195

 

208/230--- 3--- 60

MED

0.48

3.8

39.0

50

41

202

42.8

 

50

45

 

206

 

 

HIGH

 

 

43.8

50

46

245

47.6

 

60

51

 

249

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

581J*09

 

STD

 

 

18.2

20

19

95

20

 

25

21

 

97

 

HIGH

 

 

20.0

25

21

123

21.8

 

25

23

 

125

 

460--- 3--- 60

MED

0.25

1.8

18.2

20

19

101

20.0

 

25

21

 

103

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STD

 

 

13.2

15

14

77

17

 

20

18

 

81

 

575--- 3--- 60

MED

0.24

3.8

14.0

20

15

81

17.8

 

20

19

 

85

 

 

HIGH

 

 

14.8

20

16

92

18.6

 

20

20

 

96

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STD

 

 

47.2

60

50

282

51.0

 

60

54

 

286

 

208/230--- 3--- 60

MED

0.48

3.8

52.0

60

55

325

55.8

 

60

60

 

329

 

 

HIGH

 

 

57.0

70

61

334

60.8

 

70

65

 

338

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

581J*12

 

STD

 

 

23.0

30

24

135

24.8

 

30

26

 

137

 

HIGH

 

 

27.8

30

30

161

29.6

 

35

32

 

163

 

460--- 3--- 60

MED

0.25

1.8

24.8

30

26

157

26.6

 

30

28

 

159

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STD

 

 

17.3

20

18

105

21.1

 

25

23

 

109

 

575--- 3--- 60

MED

0.24

3.8

18.1

20

19

116

21.9

 

25

24

 

120

 

 

HIGH

 

 

20.9

25

22

130

24.7

 

30

27

 

134

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

See: “Legend and Notes for Table 5” on page 39.

581J

37

Page 37
Image 37
Bryant 581J installation instructions Unit Wire/Fuse or Hacr Breaker Sizing Data

581J specifications

The Bryant 581J is a high-efficiency gas furnace that exemplifies advanced heating technology and innovative design. Known for its reliability and comfort, the Bryant 581J offers impressive performance features that cater to both residential and commercial heating needs. One of its standout characteristics is the two-stage heating system, which allows the furnace to operate at a lower stage when the heating demand is modest, providing improved comfort and energy efficiency. This feature also minimizes temperature fluctuations, ensuring a more consistent and comfortable indoor environment.

Energy efficiency is a critical aspect of the Bryant 581J. With an annual fuel utilization efficiency (AFUE) rating of up to 96%, this furnace is designed to convert a high percentage of fuel into usable heat, which helps homeowners save on energy bills. The high-efficiency design also contributes to a reduced carbon footprint, aligning with modern environmental concerns.

The Bryant 581J is equipped with technologically advanced features, including the ComfortTechâ„¢ control system. This system enables enhanced temperature regulation and integrates easily with smart home systems, allowing homeowners the convenience of remote control through smartphones and tablets. Additionally, the furnace includes an electronically commutated motor (ECM) blower, which optimizes airflow and reduces energy consumption while enhancing the overall comfort level within the space.

Noise reduction is another key characteristic of the Bryant 581J. The furnace is engineered with sound-dampening technology, resulting in quieter operation compared to conventional furnaces. This attention to noise management makes it an appealing choice for residential applications, where peace and tranquility are crucial.

The durable construction of the Bryant 581J ensures longevity and reliability. With a robust cabinet and quality materials, it is built to withstand the rigors of daily operation. Furthermore, the furnace comes with a warranty that provides peace of mind, protecting the investment over the years.

Overall, the Bryant 581J represents a blend of efficiency, advanced technology, and reliable performance. With its high AFUE rating, innovative features, and quiet operation, it stands out in the market as a top choice for anyone seeking a dependable heating solution. Whether for new installations or replacements, the Bryant 581J is designed to meet the heating demands of today's energy-conscious homeowners.